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Crevure 01 answered on June 27, 2019 Popularity 10/10 Helpfulness 2/10

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.index of javascript

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let monTableau = ['un', 'deux','trois', 'quatre'] ;
console.log(monTableau.indexOf('trois')) ;

Popularity 10/10 Helpfulness 2/10 Language javascript

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Tags: javascript

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Contributed on Mar 12 2020

Crevure 01

0 Answers Avg Quality 2/10

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javascript indexof

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//indexOf getting index of array element, returns -1 if not found
var colors=["red","green","blue"];
var pos=colors.indexOf("blue");//2

//indexOf getting index of sub string, returns -1 if not found
var str = "We got a poop cleanup on isle 4.";
var strPos = str.indexOf("poop");//9

Popularity 10/10 Helpfulness 5/10 Language javascript

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Tags: javascript j

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Contributed on Jun 27 2019

Grepper

0 Answers Avg Quality 2/10

index of javascript

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//indexOf()
const arr2 = [1,2,567,4,5]
//Below the indexOf searches for the value '567'
const findIndexOfValue567 = arr2.indexOf(567);
//this is then returned as an index
console.log(findIndexOfValue567)
//if the argument you place in the method is not there...
const isThisValueThere = arr2.indexOf(989);
//then a value of -1 is returned
console.log(isThisValueThere)

Popularity 10/10 Helpfulness 2/10 Language javascript

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Contributed on Oct 10 2022

Jeremy L

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indexof js

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const fruits = ["apple", "banana", "cantaloupe", "blueberries", "grapefruit"];

const index = fruits.findIndex(fruit => fruit === "blueberries");

console.log(index); // 3
console.log(fruits[index]); // blueberries

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Source: developer.mozilla.org

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Contributed on Jun 03 2021

Breakable Bug

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Indexof method javascript

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// indexOf method only requires a single value 
// and returns the index of the FIRST value found in array
const cities = [
  "Orlando",
  "Dubai",
  "Denver",
  "Edinburgh",
  "Chennai",
  "Accra",
];

console.log(cities.indexOf("Chennai"));
// expected output is 4

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Contributed on Nov 06 2022

Code Walker

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indexof javascript

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Array.indexOf(searchElement, fromIndex)

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: www.javascripttutorial.net

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Contributed on Jan 14 2020

Brainy Butterfly

0 Answers Avg Quality 2/10

indexOf ,javascript

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const mainString = "Hello, this is a sample string with a sample substring.";
const searchString = "sample";

const index = mainString.indexOf(searchString);

if (index !== -1) {
    console.log(`Substring "${searchString}" found at index ${index}`);
} else {
    console.log(`Substring "${searchString}" not found`);
}

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Source: chat.openai.com

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Contributed on Aug 08 2023

Bad Booby

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indexof javascript

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arr.indexOf(searchElement[, fromIndex])

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Source: developer.mozilla.org

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Contributed on Jan 23 2021

TheProgrammer

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indexOF

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public int indexOf(int value)
    {
        int index = -1;
        for (int i = 0; i < size; i++)
        {
            if (elementData[i] == value)
            {
                index = i;
            }
        }
        return index;
    }

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Contributed on Nov 01 2021

Sid Potti

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js index of

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const paragraph = 'The quick brown fox jumps over the lazy dog. If the dog barked, was it really lazy?';

const searchTerm = 'dog';
const indexOfFirst = paragraph.indexOf(searchTerm);

console.log(`The index of the first "${searchTerm}" from the beginning is ${indexOfFirst}`);
// expected output: "The index of the first "dog" from the beginning is 40"

console.log(`The index of the 2nd "${searchTerm}" is ${paragraph.indexOf(searchTerm, (indexOfFirst + 1))}`);
// expected output: "The index of the 2nd "dog" is 52"

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: developer.mozilla.org

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Contributed on Aug 26 2020

Itchy Ibis

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